Frost Dates for Anchorage Merrill Fld, AK

Elevation: 42 m

Frost Dates

Last Spring Frost (50%) May 1

First Fall Frost (50%) September 29

30% Probability

Last Spring Frost May 4

First Fall Frost September 24

Hard Freeze (28°F)

Last Spring Hard Freeze April 19

First Fall Hard Freeze October 8

61.22°N, 149.85°W © OpenStreetMap

Growing Season

151 Days May 1 to September 29

USDA Hardiness Zone

Zone 5b

Avg. annual minimum: −15 to −10°F

Learn more

Köppen Climate

Dsc Subarctic (Dry Summer)

Cool, dry summers and cold winters. A rare climate found at high elevations. Very short growing season for cold-tolerant crops only.

Köppen climate map

Temperature

0° 20° 40° 60°

15°

Jan

20°

Feb

26°

Mar

39°

Apr

50°

May

58°

Jun

61°

Jul

59°

Aug

50°

Sep

36°

Oct

23°

Nov

18°

Dec

32°F

28°F

Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Temperature table

Average monthly temperatures (°F)
Month	Avg High	Avg Temp	Avg Low
January	23°	15°	8°
February	28°	20°	12°
March	34°	26°	17°
April	47°	39°	30°
May	58°	50°	41°
June	66°	58°	50°
July	68°	61°	54°
August	66°	59°	51°
September	57°	50°	43°
October	43°	36°	30°
November	29°	23°	16°
December	25°	18°	11°

Precipitation

0" 1" 2" 3"

1.6"

Jan

1.4"

Feb

1.6"

Mar

1.3"

Apr

1.2"

May

1.3"

Jun

2.2"

Jul

2.9"

Aug

3.0"

Sep

2.4"

Oct

1.6"

Nov

2.0"

Dec

Precipitation table

Average monthly precipitation (inches)
Month	Precipitation
January	1.6
February	1.4
March	1.6
April	1.3
May	1.2
June	1.3
July	2.2
August	2.9
September	3.0
October	2.4
November	1.6
December	2.0

Sunrise / Sunset

Jan: 10:09 AM – 4:08 PM · 5h 59m

Feb: 8:56 AM – 5:32 PM · 8h 36m

Mar: 8:30 AM – 7:49 PM · 11h 19m

Apr: 6:49 AM – 9:10 PM · 14h 21m

May: 5:23 AM – 10:29 PM · 17h 06m

Jun: 4:33 AM – 11:26 PM · 18h 53m

Jul: 5:02 AM – 11:08 PM · 18h 07m

Aug: 6:18 AM – 9:50 PM · 15h 32m

Sep: 7:38 AM – 8:10 PM · 12h 32m

Oct: 8:56 AM – 6:33 PM · 9h 37m

Nov: 9:21 AM – 4:08 PM · 6h 46m

Dec: 10:22 AM – 3:28 PM · 5h 06m

Daylight Alaska Time (AKT) Longest: 18h 57m · Shortest: 5h 03m

Sunrise and sunset table

Sunrise, sunset, and daylight on the 15th of each month (Alaska Time (AKT))
Month	Sunrise	Sunset	Daylight
January	10:09 AM	4:08 PM	5h 59m
February	8:56 AM	5:32 PM	8h 36m
March	8:30 AM	7:49 PM	11h 19m
April	6:49 AM	9:10 PM	14h 21m
May	5:23 AM	10:29 PM	17h 06m
June	4:33 AM	11:26 PM	18h 53m
July	5:02 AM	11:08 PM	18h 07m
August	6:18 AM	9:50 PM	15h 32m
September	7:38 AM	8:10 PM	12h 32m
October	8:56 AM	6:33 PM	9h 37m
November	9:21 AM	4:08 PM	6h 46m
December	10:22 AM	3:28 PM	5h 06m

Nearby Stations

Campbell Creek Sci Ctr, AK May 28 - September 12 Anchorage Lake Hood AP, AK May 1 - October 3 Anchorage Forecast Office, AK May 5 - September 29 Anchorage Intl AP, AK May 5 - October 1 Ft Richardson Wtp, AK May 9 - September 26 Anchorage Upper De Armoun, AK May 7 - September 28

Plan Your Garden with Planter

Now that you know your frost dates, use Planter to plan your veggie garden! Planter is an easy drag-and-drop garden planner with personalized planting schedules.

Try Planter For Free

Available everywhere: iOS, Android, web, and more!